CN109630620A - A kind of no universal shaft screw rod - Google Patents
A kind of no universal shaft screw rod Download PDFInfo
- Publication number
- CN109630620A CN109630620A CN201811464088.7A CN201811464088A CN109630620A CN 109630620 A CN109630620 A CN 109630620A CN 201811464088 A CN201811464088 A CN 201811464088A CN 109630620 A CN109630620 A CN 109630620A
- Authority
- CN
- China
- Prior art keywords
- rotor
- thrust bearing
- gear
- gear wheel
- situation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 238000005553 drilling Methods 0.000 abstract description 7
- 244000309464 bull Species 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/05—Swivel joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Retarders (AREA)
Abstract
A kind of no universal shaft screw rod of the present invention, including outer housing, rotor, gear wheel, thrust bearing rotating ring, thrust bearing stationary ring, transmission shaft.Outer housing top connects motor assembly, and lower part connects driving-shaft assembly；Rotor terminal is provided with gear, carries out internal messing with gear wheel；Thrust bearing rotating ring, thrust bearing stationary ring contact surface compress by axial force and transmit axial force, and rotor are respectively adopted, the step positioning that gear wheel inside is arranged；Gear wheel lower part and transmission axis connection simultaneously transmit torque.The present invention utilizes the planetary motion of rotor, and using the above structure replaces original universal axle assembly with feature, simplifies spiral drilling rig structure and increases service life；And the size for the ratio changing rotating speed of transmission shaft that can be engaged by adjusting gear.
Description
Technical field
The present invention relates to a kind of oil and gas industry drilling engineering technical field, especially a kind of no universal shaft screw rod.
Background technique
In oil and gas exploitation, helicoid hydraulic motor is widely used in drilling well or well workover, wherein universal axle assembly is by horse
The planetary motion reached is changed into the fixed-axis rotation of transmission shaft, and torque and revolving speed that motor generates are passed to transmission shaft to drill bit.
Existing universal shaft mostly uses greatly petal, flexural pivot shape or cross, works in mud for a long time, and service life is short, quick
Accelerate to wear with the raising of drilling parameter in drilling well.It is roller transmission, roller stress at work between universal shaft and water cap
Larger and unbalance stress, it is not strong to bear torque capability, is easy to cause the junction of universal shaft and water cap transmission efficiency occur poor, very
To the case where fatigue fracture；The planetary motion of universal shaft increases the lateral force of transmission shaft, exacerbates the eccentric wear of TC bearing, makes to go here and there
Bearing easily damages, and reduces the service life and drilling efficiency of helicoid hydraulic motor complete machine.
To solve the above-mentioned problems, a kind of no universal shaft screw rod is proposed hereby, is abandoned universal axle assembly, is cancelled therewith universal
Roller transmission between axis and water cap improves transmission efficiency, while reduces transmission shaft lateral force substantially, alleviates TC bearing
Eccentric wear, improve string bearing service life；By the planetary motion of rotor and gear engage in the way of replace it is original
Universal axle assembly, to solve above-mentioned technological deficiency.
Summary of the invention
The present invention provides a kind of no universal shaft screw rod, to improve service life of screw drilling tools.
The present invention provides a kind of no universal shaft screw rod, including outer housing, rotor, gear wheel, thrust bearing rotating ring, thrust axis
Hold stationary ring, transmission shaft.With motor assembly using being threadedly coupled, lower part and driving-shaft assembly are connected using screw thread on the outer housing top
It connects；The Rotor terminal is provided with gear, carries out internal messing with the gear wheel；The thrust bearing rotating ring uses the rotor
The step positioning of inside setting, the thrust bearing stationary ring is using the step positioning being arranged inside the gear wheel, the thrust
The axis of rotation of the axis of rotation of bearing rotating ring and the thrust bearing stationary ring has eccentricity；The transmission shaft and the gear wheel
Using being threadedly coupled and transmit torque；The thrust bearing rotating ring and the thrust bearing stationary ring contact surface are compressed by axial force
And transmit axial force.
The beneficial effects of the present invention are: driving by the planetary motion of the rotor and in such a way that gear engages described
Bull gear drive using the above structure replaces original universal axle assembly with feature.It is not only compact-sized, axial dimension is smaller,
The service life and working efficiency of helicoid hydraulic motor are improved simultaneously.
Further, there are three types of situation, situation one: 0 < i < 1, the rotations of this situation lower drive shaft by the transmission ratio i of the gear engagement
It is identical as rotor sense of rotation to turn direction, output of slowing down, situation two: i=0, this situation lower drive shaft is without revolving speed output, situation two
It to be avoided in actual design, situation three: i < 0, this situation lower drive shaft direction of rotation is identical as rotor revolution direction, can
Deceleration, constant speed, speedup output.
Beneficial effect using above-mentioned further technical solution is: by the design to gear ratio, can control transmission
The size of axis revolving speed output.
Detailed description of the invention
Fig. 1 is a kind of no universal shaft screw-rod structure schematic diagram of the present invention；
Fig. 2 is Section A-A figure；
Fig. 3 is section B-B figure；
Fig. 4 is kinematic sketch of mechanism of the invention；
Fig. 5 is Rotor terminal gear tooth portions three-dimensional figure；
Fig. 6 is gear teeth of bull gear partial 3-D figure；
Fig. 7 is that three-dimensional figure is assembled in the Rotor terminal gear teeth and gear teeth of bull gear part；
In figure: 1. outer housings, 2. rotors, 3. gear wheels, 4. thrust bearing rotating rings, 5. thrust bearing stationary rings, 6. transmission shafts.
Specific embodiment
The present invention is further illustrated with embodiment with reference to the accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of no universal shaft screw rod of the present invention, is by outer housing 1, rotor 2, gear wheel 3, pushes away
Power bearing rotating ring 4, thrust bearing stationary ring 5, transmission shaft 6 form；It is characterized in that 1 top of outer housing and motor assembly use
It is threadedly coupled, lower part uses with driving-shaft assembly and is threadedly coupled；2 end of rotor is provided with gear, with the gear wheel 3 into
Row internal messing；The thrust bearing rotating ring 4 is adopted using the step positioning being arranged inside the rotor 2, the thrust bearing stationary ring 5
With the step positioning being arranged inside the gear wheel 3, the axis of rotation of the thrust bearing rotating ring 4 and the thrust bearing stationary ring
5 axis of rotation has eccentricity；The transmission shaft 6 is used with the gear wheel 5 and is threadedly coupled；Utilize the planet of the rotor 2
The mode for moving through gear engagement drives the gear wheel 3 to rotate, and the gear wheel 3, which is connected through a screw thread, transmits torque
To the transmission shaft 6, original universal axle assembly is replaced with feature using the above structure；The thrust bearing rotating ring 4 with it is described
5 contact surface of thrust bearing stationary ring is compressed by axial force and transmits axial force.
As shown in Fig. 1, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the rotor 2 is power intake, while having revolution and rotation, i.e.,
Driving link number is 2 in Fig. 4, and the sense of rotation that revolves is opposite；Since driving link number is 2, so can will be described in Fig. 4
Rotor 2 is reduced to two components, respectively component 1 and component 2, and component 1 is revolved counterclockwise, component 2 carry out it is clockwise from
Turn, is planet carrier H between 1 component 2 of component, by asking freedom degree come the correctness of proof diagram 4 mechanism；2 end of rotor
The number of teeth of the number of teeth, that is, component 2 is Z2, the gear wheel 3 is connected through a screw thread with the transmission shaft 6 and is integrated, and is reduced to structure herein
Part 3, number of teeth Z3, the two is using cycloid or circular arc straight-tooth；The rotor 2 is enabled to revolve revolving speed as nIt is public, rotation revolving speed is nFrom, screw rod
Motor specific lobe is N:N+1；First the kinematic sketch of mechanism described in Fig. 4 carry out freedom calculation, wherein movable part number n=3,
Low secondary pl=3, higher pair ph=1, it can obtain:
F=3n- (2pl+ph)=3 × 3- (2 × 3+1)=2 (1)
By formula (1) know that the mechanism freedom is 2 equal with the 2 driving link number of rotor, it was demonstrated that mechanism kinematic
The correctness of schematic diagram, mechanism can run well；Z is now obtained by Transmission Ratio of Planetary Gear Trains calculation formula2、Z3Transmission ratio i23 H
Are as follows:
Wherein n3For 3 revolving speed of transmission shaft, nHFor the planet carrier H revolving speed, and:
nH=nIt is public=-NnFrom (3)
It further calculates, available 3 revolving speed of transmission shaft are as follows:
Enable Z3-Z2=Z deforms formula (4) are as follows:
Wherein transmission ratio i are as follows:
Formula (5) accurate description 3 revolving speed n of transmission shaft3With the 2 rotation revolving speed n of rotorFromBetween mathematics close
System；When screw motor rotor head number N is determined, the 3 revolving speed n of transmission shaft3There are following three kinds of situations, situation one works as Z2Greater than spiral shell
Bar motor rotor head number N and Z3-Z2=1 or Z2+(Z2-Z3) N > 0 when, to n3Revolving speed finding limit:
N in these cases3Rev limit be nFrom, but the actual value of transmission ratio by perseverance less than 1, value range be 0 < i <
1,3 direction of rotation of transmission shaft is identical as 2 sense of rotation of rotor, output of slowing down；Situation two, when taking screw motor head number
Compare N/N+1=Z2/Z3Shi get:
n3=0 (8)
3 revolving speed of transmission shaft is 0 at this time, to be avoided in actual design；Situation three, works as Z2< N or Z2+(Z2-
Z3) N < 0 when have transmission ratio:
I < 0 (9)
Formula (9) illustrates 3 gyratory directions of transmission shaft at this time and 2 sense of rotation of rotor on the contrary, with the rotor 2
Revolution direction is identical, | i | > 0 shows that the transmission shaft 3 can slow down, constant speed, speedup export.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " end ", " inside "
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as
Limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, term " connection " shall be understood in a broad sense, for example, can be with
It is to be fixedly connected, may be a detachable connection, or is integral；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill people of this field
For member, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
A kind of no universal shaft screw rod of the present invention is described in detail above, specific case used herein is to this hair
Bright principle and embodiment is expounded.Core of the invention that the above embodiments are only used to help understand is thought
Think；At the same time, for those skilled in the art, according to the thought of the present invention, in specific embodiments and applications
There will be changes, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (1)
1. a kind of no universal shaft screw rod of the present invention, including outer housing (1), rotor (2), gear wheel (3), thrust bearing rotating ring (4),
Thrust bearing stationary ring (5), transmission shaft (6)；Outer housing (1) top uses with motor assembly and is threadedly coupled, lower part and transmission
Axle assembly is using threaded connection；Rotor (2) end is provided with gear, carries out internal messing with the gear wheel (3)；It is described to push away
Power bearing rotating ring (4) is using the step positioning being arranged inside the rotor (2), and the thrust bearing stationary ring (5) is using described big
The step positioning being arranged inside gear (3), the axis of rotation of the thrust bearing rotating ring (4) and the thrust bearing stationary ring (5)
Axis of rotation have eccentricity；The transmission shaft (6) uses with the gear wheel (5) and is threadedly coupled；A kind of no universal shaft
Screw rod, which is characterized in that drive the gear wheel by the planetary motion of the rotor (2) and in such a way that gear engages
(3) rotate, the gear wheel (3), which is connected through a screw thread, delivers torque to the transmission shaft (6), using the above structure with feature
Original universal axle assembly is replaced；The thrust bearing rotating ring (4) and thrust bearing stationary ring (5) contact surface pass through axial force
It compresses and transmits axial force；There are three types of situation, situation one: 0 < i < 1, this situation lower drive shafts by the transmission ratio i of the gear engagement
Direction of rotation is identical as rotor sense of rotation, output of slowing down, situation two: i=0, this situation lower drive shaft is exported without revolving speed, situation
Two will avoid in actual design, situation three: i < 0, this situation lower drive shaft direction of rotation is identical as rotor revolution direction,
It can slow down, the output of constant speed, speedup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464088.7A CN109630620A (en) | 2018-12-03 | 2018-12-03 | A kind of no universal shaft screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811464088.7A CN109630620A (en) | 2018-12-03 | 2018-12-03 | A kind of no universal shaft screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109630620A true CN109630620A (en) | 2019-04-16 |
Family
ID=66070773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811464088.7A Pending CN109630620A (en) | 2018-12-03 | 2018-12-03 | A kind of no universal shaft screw rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630620A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056309A (en) * | 2019-05-10 | 2019-07-26 | 西南石油大学 | System of Rotating about Fixed Axis positive displacement power tool |
| CN115822443A (en) * | 2023-02-15 | 2023-03-21 | 四川迪信石油技术有限公司 | High-rotation-speed screw drilling tool system beneficial to prolonging service life and drilling method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3148746C1 (en) * | 1981-12-09 | 1983-09-29 | Vsesojuznyj naučno-issledovatel'skij institut burovoj techniki, Moskva | Multi-thread planetary screw drive |
| CN2300624Y (en) * | 1996-09-09 | 1998-12-16 | 慕承武 | Inner gearing birotor screw pump |
| RU2195544C1 (en) * | 2001-04-11 | 2002-12-27 | Открытое акционерное общество Научно-производственное объединение "Буровая техника" | Device for producing hydraulic pressure pulses in well (versions) |
| CN1888372A (en) * | 2006-07-21 | 2007-01-03 | 西南石油大学 | Whole-metal stator screw drilling tool |
| CN2903330Y (en) * | 2006-03-10 | 2007-05-23 | 长江大学 | Uniform loading propulsive force bearing joint |
| CN201354584Y (en) * | 2009-02-19 | 2009-12-02 | 中国石油天然气股份有限公司 | Screw drilling tool |
| CN101864893A (en) * | 2010-05-07 | 2010-10-20 | 江汉石油钻头股份有限公司 | Screw rod drilling tool |
| CN204024463U (en) * | 2014-08-27 | 2014-12-17 | 中国石油集团川庆钻探工程有限公司 | Double-acting pneumatic power nipple suitable for gas drilling underground power drilling tool |
| CN104847257A (en) * | 2015-04-20 | 2015-08-19 | 江汉石油钻头股份有限公司 | Screw drill motor |
-
2018
- 2018-12-03 CN CN201811464088.7A patent/CN109630620A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3148746C1 (en) * | 1981-12-09 | 1983-09-29 | Vsesojuznyj naučno-issledovatel'skij institut burovoj techniki, Moskva | Multi-thread planetary screw drive |
| CN2300624Y (en) * | 1996-09-09 | 1998-12-16 | 慕承武 | Inner gearing birotor screw pump |
| RU2195544C1 (en) * | 2001-04-11 | 2002-12-27 | Открытое акционерное общество Научно-производственное объединение "Буровая техника" | Device for producing hydraulic pressure pulses in well (versions) |
| CN2903330Y (en) * | 2006-03-10 | 2007-05-23 | 长江大学 | Uniform loading propulsive force bearing joint |
| CN1888372A (en) * | 2006-07-21 | 2007-01-03 | 西南石油大学 | Whole-metal stator screw drilling tool |
| CN201354584Y (en) * | 2009-02-19 | 2009-12-02 | 中国石油天然气股份有限公司 | Screw drilling tool |
| CN101864893A (en) * | 2010-05-07 | 2010-10-20 | 江汉石油钻头股份有限公司 | Screw rod drilling tool |
| CN204024463U (en) * | 2014-08-27 | 2014-12-17 | 中国石油集团川庆钻探工程有限公司 | Double-acting pneumatic power nipple suitable for gas drilling underground power drilling tool |
| CN104847257A (en) * | 2015-04-20 | 2015-08-19 | 江汉石油钻头股份有限公司 | Screw drill motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056309A (en) * | 2019-05-10 | 2019-07-26 | 西南石油大学 | System of Rotating about Fixed Axis positive displacement power tool |
| CN115822443A (en) * | 2023-02-15 | 2023-03-21 | 四川迪信石油技术有限公司 | High-rotation-speed screw drilling tool system beneficial to prolonging service life and drilling method |
| CN115822443B (en) * | 2023-02-15 | 2023-05-02 | 四川迪信石油技术有限公司 | High-rotation-speed screw drilling tool system beneficial to prolonging service life and drilling method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
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| RJ01 | Rejection of invention patent application after publication |